Literary usage of Commutable

Below you will find example usage of this term as found in modern and/or classical literature:

1.The Writings of James Madison: Comprising His Public Papers and His Private by James Madison, Gaillard Hunt (1901)"Your observations on Tobacco as a commutable in the taxes are certainly just &
unanswerable. My acquiescence in the measure was against every general ..."

2.Focalóir gaoidhilge-sax-bhéarla, or An Irish-English dictionary: Whereof the by Edward Lhuyd, John O'Brien (1768)"... their being commutable with each other should not deprive them of that
privilege , no m»re than the consonants ; many of which are equally interchange ..."

3.Life Insurance by Abb Landis (1914)"If he have a pension of 100 pounds net, payable at the end of each year, what is
the commutable value of the pension at 21/, per cent interest? , , ..."